Estech Schemematic Tool can view schematics and bitmaps of Windows computers. It allows users to view circuits, Bitmap, and schematic diagrams on Android and iPhone smartphones. All users are free to use the tool for up to 365 days.
Download Link:: Link

- Guideline for Smartphones (All hardware issues such as a ringer and spk or LCD, plus more problem solutions with pic)
- Lenovo – OPPO - Realme – Samsung- Xiaomi – More models to follow
- Datasheets, Schematics, and Datasheet
- Advan- Alcatel- Asus- Huawei- iPad- iPhone- LG- Meizu- VIVO- Xiaomi
- Bit mapping of PCBs
- 2D Bitmap- Apple- Huawei- Infinix- Meizu- Motorola- One Plus- Oppo- Samsung- Single Layer- Tecno- VIVO- Xiaomi- ZTE
- Multimeter PCB
- Realme- VIVO- Xiaomi
Download Link:: Link